*1 Varies depending on sensor type installed. Please contact Riken Keiki for more information.*2 In temporary ambient conditions for approximately 15 minutes. The operating temperature and humidity ranges for continuous ambient conditions are as follows: Temperature: -20 °C to +50 °C (no sudden changes) / Humidity: 10 to 90 %RH (no condensation)

Model GX-3R

Detection method Diffusion type (Changeable to sampling type by attaching RP-3R)

Lamp flashing, continuous modulating buzzer sounding, gas concentration display blinking, vibration

Gas alarm indication Reset operation: Self-latching

Fault alarm System abnormality, sensor abnormality, battery voltage drop, calibration failure

Fault alarm indication Lamp flashing, intermittent buzzer sounding, detail display Reset operation: Self-latching

Displays LCD digital, backlight, operation status, clock, battery level, temperature, peak reading, calibration notification

Buzzer volume Approx. 95dB (30cm)

Data logger function Maximum number of items: 3,600 Interval: 5 minutes (adjustable) Communication system: IrDA

ATEX II1G Ex da ia IIC T4 Ga / IM1 Ex da ia I Ma (With combustible gas sensor) II1G Ex ia IIC T4 Ga / IM1 Ex ia I Ma (No combustible gas sensor)Explosion-proof class IECEx Ex da ia IIC T4 Ga / Ex da ia I Ma (With combustible gas sensor) Ex ia IIC T4 Ga / Ex ia I Ma (No combustible gas sensor) Japan Ex Ex ia IIC T4 Ga

Protection level Equivalent to IP66/68 (2 m, 1 h)

Power source Lithium ion rechargeable battery unit Charging time: Approx. 3 hours

Long-life battery mode on: Approx. 40 hours (25°C, fully charged, no alarm, no lighting)Continuous operating time*1

Long-life battery mode off: Approx. 25 hours (25°C, fully charged, no alarm, no lighting)

Temperature range/humidity range*2

-40℃～+60℃(no sudden changes), 0～95%RH (non-condensation)

External dimensions/weight Approx. 58mm (W) × 65mm (H) × 26mm (D) (excluding protrusions) / Approx.100g

Warranty 3 years (optional 2 years extension available)

Detection target gas

1 digit

Gas alarm setpoint(can be set by user)

Detection range(service range)

Detection principle Electrochemical type

1%LEL

1st alarm : 10%LEL2nd alarm : 25%LEL3rd alarm : 50%LELOVER alarm : 100%LEL

0~100%LEL

New ceramic type

Combustible gas(HC or CH4)

0.1vol%

L alarm : 19.5vol%LL alarm : 18.0vol%H alarm : 23.5vol%OVER alarm : 40.0vol%

0~25.0 vol%(~40.0 vol%)

Oxygen(O2)

1ppm

1st alarm : 25ppm2nd alarm : 50ppm3rd alarm : 1200ppmTWA alarm : 25ppmSTEL alarm : 200ppmOVER alarm : 2000ppm

0~500ppm(~2000ppm)

Carbon monoxide(CO)

0.1ppm

1st alarm : 5.0ppm2nd alarm : 30.0ppm3rd alarm : 100.0ppmTWA alarm : 1.0ppmSTEL alarm : 5.0ppmOVER alarm : 200.0ppm

0~100.0ppm(~200.0ppm)

Hydrogen sulfide(H2S)

Protective cover(Part No. 4777 4161 10)

Appearance when attached

Standard accessoriesProtective cover

EU plug(Part No. 2594 0933 60)

Specifications

Detection gas

The newly developed dual-sensor configuration reduces size by approximately 30% compared to previous models.Light weight (about 100g) means it won’t interfere with your work.

The instrument and sensors have 5-year warranty*.*Option.

Small & Light

5-year warranty

Weightsjust

100g!

Portable gas monitorModel

Intrinsically safe explosion-proof construction and flame - proof enclosures

Water and dust resistant IP66/68

Robust design(Withstands 7m drop)

Play the Promotional videofrom here.

Now on the website!

Hand strap (Part No. 0888 0605 90)

AC adapter (Part No. 2594 0898 30)

Alligator clip(Part No. 4777 9203 10)

Calibration adapter (simple type)(Part No. 4777 9307 40)

Type listTYPE Detection gas

TYPE A LEL, O2, H2S, CO

TYPE B LEL, O2 ,H2S

TYPE C LEL, O2, CO

TYPE CH LEL, O2, CO*

TYPE D LEL, O2

TYPE E O2, H2S

TYPE F O2, CO

TYPE FH O2, CO*

TYPE I LEL, CO

TYPE IH LEL, CO*

TYPE K H2S

* CO sensor with reduced H2 interference

PC0E-1001

PC0E-1001-200130 S

Distributed by:Distributed by:

2-7-6 Azusawa, Itabashi-ku, Tokyo 174 -8744, Japan: +81-3-3966-1113: +81-3-3558-9110: intdept@rikenkeiki.co.jp: http://www.rikenkeiki.co.jp/english

PhoneTelefaxE-mail

Web site

※The contents described in this catalog are subject to change without notice according to the performance improvement.

Also consider the high-spec [GX-3R Pro] model!

① Up to 5 gases can be detected Detects carbon dioxide and sulfur dioxide in addition to combustible gases, O2, H2S, and CO.

② Connects with Bluetooth Allows connection to a smartphone. Use the dedicated app iOS, Android to send alarm notifications by email.

③ Runs on either dry cell or rechargeable batteries Unit system for easy replacement.

④ Easy-to-read full-dot display Supports a total of 11 different languages.

Pump unit RP-3R Docking station SDM-3R

Optional accessories

An external electric pump.Allows use for suction sampling.

Allows the user to perform a simpli�ed pre-work check (bump test) and gas calibration automatically.

Model RP-3R

Suction flow rate High mode: 0.4 L/min or more

Low mode: 0.25 L/min or more

Battery AA alkaline battery × 1

High mode: Approx. 10 hours Low mode: Approx. 16 hours

Temperature range -20ºC~+50ºC (at a constant condition)

Humidity range 0~95%RH (non-condensing)

Inherently safe explosion-proof construction ATEX II1G Ex ia IIC T4 Ga

IECEx Ex ia IIC T4 Ga

Japan Ex Ex ia IIC T4 Ga

Structure Drip-proof and dust-proof performances

compliant to IP67 level

Approx. 82mm (W) × 96mm (H) × 29mm (D) /

Approx. 120g

Optional accessories 8m

float-type gas sampling tube

Filters (set of 10) Meshes (set of 10)

* Cannot be connected to other models GX-2009, GX-3R Pro and others.

* For details, see the GX-3R Pro catalog.

Easy to attachand remove!

Specifications

1 Heat-resistant case

2 Leather case 3 Belt clip

4 Arm/Ankle belt 5 Protective film 6 Manual suction unit

7 Charging cradle 8 Five-unit AC adaptor

9 Calibration adapter

10 Data management program

You can understand at a glance! GX-3RModel GX-3R

Detection gas 1 to 4 types

Battery Rechargeable battery

Detection method Diffusion type

*Pump unit available as option (see next page)

Alarm setpoint Settings can be changed.

Combustible gas conversion function 26 types

Data logger function Records up to 3,600 data.

Confirmation beep function Can be changed (see section below for details).

Lunch break function Can be changed (see section below for details).

Protective cover Provided as standard

Heat-resistant case, leather case Optional accessories

Five-component detection We recommend the GX-3R Pro model.

Dry battery power We recommend the GX-3R Pro model.

Bluetooth We recommend the GX-3R Pro model.

Model SDM-3R

Power supply 100 to 240 V AC ±10%, 50/60 Hz

Suction flow rate Approx. 0.25 L/min

Temperature range 0~40ºC (at a constant condition)

Humidity range 0~95%RH (non-condensing)

Approx. 130mm (W) × 110mm (H) × 250mm (D) / Approx. 800g

Optional accessories Connecting fixture, wall-mounting fixture,

exhaust tube

Specifications

1 Heat-resistant case

Case for protection from heat resource. Uses a safety pin. Part No. 4777 4259 40

2 Leather case

Case for protection against dirt. Uses the clip on the unit. Part No. 4777 4257 00

3 Belt clipAllows the product to be attached to a belt or pocket. Part No. 4777 9202 40

4 Arm/Ankle belt

Belt for securing the unit to your arm or ankle. Part No. 4777 9293 30

5 Protective film

Protects the display.(set of 5) Part No. 4777 9296 50

6 Manual suction unit

External manual pump. Draws in at greater flow rates than electric pump.

(with sampling probe)Part No. 4777 9302 80

(with 8m float-type tube)Part No. 4777 9304 20

(with 30m weighted tube)Part No. 4777 9305 00

7 Charging cradle

Cradle for recharging the unit. Cradles can be interconnected. Part No. BC-3R 00

8 Five-unit AC adaptor

One AC adapter recharges up to five units.*Recharging times remain unchanged.

(with 22.5cm cable)Part No. 4777 9329 70

(with 60cm cable)Part No. 4777 9319 80

(with 120cm cable)Part No. 4777 9333 20

9 Calibration adapter

Adapter for applying gas to GX-3R during bump test and calibration.(with outlet nipple and rubber seal)

Part No. 4777 9311 00

10 Data management program

Software for viewing and managing measurement data. Part No. 9811 0870 60

Wide range of safety functions

Combustible gas conversion function Eliminates the need for complex calculations. Allows direct readout of 26 different combustible gas types.

Alarm setpoints can be freely adjusted You can now adjust alarm setpoints on the main unit. Allows monitoring based on the customer’s own standards.

Lunch break Enabling this function retains the TWA and peak values and allows integrating measurement whether power is on or off.

Cal. Limit Indicates the number of days until recommended regular maintenance when the power is turned on. Reminds the user to perform maintenance on the product to ensure safe use.

Confirmation beep This function provides audible notification that the device is functioning correctly. Buzzer sounds at preset intervals while measurement is underway.

Compact lightweight design won’timpede work in confined spaces.

Tough design to withstand 7m drop,that you can use even when working at heights.

Use the suction unit to confirm safety before entering pits.

The newly developed CO sensor reduces

effects of hydrogen interference.

Active in var ious fields!

Gas plants Shipyards Steel plantsConstruction sites

Model

Model

Combustible conversion gas list

CH4 i-C4H10

Methane CH4

Isobutane i-C4H10

Hydrogen H2

Methanol CH3OH

Acetylene C2H2

Ethylene C2H4

Ethane C2H6

Ethanol C2H5OH

Propylene C3H6

Acetone C3H6O

Propane C3H8

Butadiene C4H6

Cyclopentane C5H10

Dimensions /Weight

Explosion-proof class

Dimensions /Weight

Conversion gasCalibration gas conversionGas name

displayed

Continuousoperating time

⇒

⇒

⇒

*Photo shows the unit with sampling probe.

Sampling probe

*not explosion-proof

ー ×◯ ー◯ ◯◯ ◯◯ ◯◯ ◯◯ ×◯ ◯◯ ◯◯ ◯◯ ×◯ ◯◯ ◯

CH4 i-C4H10

Benzene C6H6

N-hexane n-C6H14

Toluene C7H8

N-heptane n-C7H16

Xylene C8H10

N-nonane n-C9H20

Ethyl acetate EtAc

Isopropyl alcohol IPA

Methyl ethyl ketone MEK

Methyl methacrylate MMA

Dimethyl ether DME

Methyl isobutyl ketone MIBK

Tetrahydrofuran THF

Conversion gasCalibration gas conversionGas name

displayed

◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯

Mounted with the new R sensors, which are long-term consistence sensors

HC or CH4 O2 CO&H2S CO

GX-3R mounted with the new R sensor series, which have dramatically improved the performance from the previous sensors.The sensors have 5-year warranty*. *Option.

Tough construction against poisoning- and impact-resistant!

New electrochemical oxygen sensor,which improved the basic characteristics.

2-in-1 configuration enabled smaller detector!

Significantly reduce H2 interference with a two-sensor structure!

11 12

Also consider the high-spec [GX-3R Pro] model!

① Up to 5 gases can be detected Detects carbon dioxide and sulfur dioxide in addition to combustible gases, O2, H2S, and CO.

② Connects with Bluetooth Allows connection to a smartphone. Use the dedicated app iOS, Android to send alarm notifications by email.

③ Runs on either dry cell or rechargeable batteries Unit system for easy replacement.

④ Easy-to-read full-dot display Supports a total of 11 different languages.

Pump unit RP-3R Docking station SDM-3R

Optional accessories

An external electric pump.Allows use for suction sampling.

Allows the user to perform a simpli�ed pre-work check (bump test) and gas calibration automatically.

Model RP-3R

Suction flow rate High mode: 0.4 L/min or more

Low mode: 0.25 L/min or more

Battery AA alkaline battery × 1

High mode: Approx. 10 hours Low mode: Approx. 16 hours

Temperature range -20ºC~+50ºC (at a constant condition)

Humidity range 0~95%RH (non-condensing)

Inherently safe explosion-proof construction ATEX II1G Ex ia IIC T4 Ga

IECEx Ex ia IIC T4 Ga

Japan Ex Ex ia IIC T4 Ga

Structure Drip-proof and dust-proof performances

compliant to IP67 level

Approx. 82mm (W) × 96mm (H) × 29mm (D) /

Approx. 120g

Optional accessories 8m

float-type gas sampling tube

Filters (set of 10) Meshes (set of 10)

* Cannot be connected to other models GX-2009, GX-3R Pro and others.

* For details, see the GX-3R Pro catalog.

Easy to attachand remove!

Specifications

1 Heat-resistant case

2 Leather case 3 Belt clip

4 Arm/Ankle belt 5 Protective film 6 Manual suction unit

7 Charging cradle 8 Five-unit AC adaptor

9 Calibration adapter

10 Data management program

You can understand at a glance! GX-3RModel GX-3R

Detection gas 1 to 4 types

Battery Rechargeable battery

Detection method Diffusion type

*Pump unit available as option (see next page)

Alarm setpoint Settings can be changed.

Combustible gas conversion function 26 types

Data logger function Records up to 3,600 data.

Confirmation beep function Can be changed (see section below for details).

Lunch break function Can be changed (see section below for details).

Protective cover Provided as standard

Heat-resistant case, leather case Optional accessories

Five-component detection We recommend the GX-3R Pro model.

Dry battery power We recommend the GX-3R Pro model.

Bluetooth We recommend the GX-3R Pro model.

Model SDM-3R

Power supply 100 to 240 V AC ±10%, 50/60 Hz

Suction flow rate Approx. 0.25 L/min

Temperature range 0~40ºC (at a constant condition)

Humidity range 0~95%RH (non-condensing)

Approx. 130mm (W) × 110mm (H) × 250mm (D) / Approx. 800g

Optional accessories Connecting fixture, wall-mounting fixture,

exhaust tube

Specifications

1 Heat-resistant case

Case for protection from heat resource. Uses a safety pin. Part No. 4777 4259 40

2 Leather case

Case for protection against dirt. Uses the clip on the unit. Part No. 4777 4257 00

3 Belt clipAllows the product to be attached to a belt or pocket. Part No. 4777 9202 40

4 Arm/Ankle belt

Belt for securing the unit to your arm or ankle. Part No. 4777 9293 30

5 Protective film

Protects the display.(set of 5) Part No. 4777 9296 50

6 Manual suction unit

External manual pump. Draws in at greater flow rates than electric pump.

(with sampling probe)Part No. 4777 9302 80

(with 8m float-type tube)Part No. 4777 9304 20

(with 30m weighted tube)Part No. 4777 9305 00

7 Charging cradle

Cradle for recharging the unit. Cradles can be interconnected. Part No. BC-3R 00

8 Five-unit AC adaptor

One AC adapter recharges up to five units.*Recharging times remain unchanged.

(with 22.5cm cable)Part No. 4777 9329 70

(with 60cm cable)Part No. 4777 9319 80

(with 120cm cable)Part No. 4777 9333 20

9 Calibration adapter

Adapter for applying gas to GX-3R during bump test and calibration.(with outlet nipple and rubber seal)

Part No. 4777 9311 00

10 Data management program

Software for viewing and managing measurement data. Part No. 9811 0870 60

Wide range of safety functions

Combustible gas conversion function Eliminates the need for complex calculations. Allows direct readout of 26 different combustible gas types.

Alarm setpoints can be freely adjusted You can now adjust alarm setpoints on the main unit. Allows monitoring based on the customer’s own standards.

Lunch break Enabling this function retains the TWA and peak values and allows integrating measurement whether power is on or off.

Cal. Limit Indicates the number of days until recommended regular maintenance when the power is turned on. Reminds the user to perform maintenance on the product to ensure safe use.

Confirmation beep This function provides audible notification that the device is functioning correctly. Buzzer sounds at preset intervals while measurement is underway.

Compact lightweight design won’timpede work in confined spaces.

Tough design to withstand 7m drop,that you can use even when working at heights.

Use the suction unit to confirm safety before entering pits.

The newly developed CO sensor reduces

effects of hydrogen interference.

Active in var ious fields!

Gas plants Shipyards Steel plantsConstruction sites

Model

Model

Combustible conversion gas list

CH4 i-C4H10

Methane CH4

Isobutane i-C4H10

Hydrogen H2

Methanol CH3OH

Acetylene C2H2

Ethylene C2H4

Ethane C2H6

Ethanol C2H5OH

Propylene C3H6

Acetone C3H6O

Propane C3H8

Butadiene C4H6

Cyclopentane C5H10

Dimensions /Weight

Explosion-proof class

Dimensions /Weight

Conversion gasCalibration gas conversionGas name

displayed

Continuousoperating time

⇒

⇒

⇒

*Photo shows the unit with sampling probe.

Sampling probe

*not explosion-proof

ー ×◯ ー◯ ◯◯ ◯◯ ◯◯ ◯◯ ×◯ ◯◯ ◯◯ ◯◯ ×◯ ◯◯ ◯

CH4 i-C4H10

Benzene C6H6

N-hexane n-C6H14

Toluene C7H8

N-heptane n-C7H16

Xylene C8H10

N-nonane n-C9H20

Ethyl acetate EtAc

Isopropyl alcohol IPA

Methyl ethyl ketone MEK

Methyl methacrylate MMA

Dimethyl ether DME

Methyl isobutyl ketone MIBK

Tetrahydrofuran THF

Conversion gasCalibration gas conversionGas name

displayed

◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯◯ ◯

Mounted with the new R sensors, which are long-term consistence sensors

HC or CH4 O2 CO&H2S CO

GX-3R mounted with the new R sensor series, which have dramatically improved the performance from the previous sensors.The sensors have 5-year warranty*. *Option.

Tough construction against poisoning- and impact-resistant!

New electrochemical oxygen sensor,which improved the basic characteristics.

2-in-1 configuration enabled smaller detector!

Significantly reduce H2 interference with a two-sensor structure!

11 12

*1 Varies depending on sensor type installed. Please contact Riken Keiki for more information.*2 In temporary ambient conditions for approximately 15 minutes. The operating temperature and humidity ranges for continuous ambient conditions are as follows: Temperature: -20 °C to +50 °C (no sudden changes) / Humidity: 10 to 90 %RH (no condensation)

Model GX-3R

Detection method Diffusion type (Changeable to sampling type by attaching RP-3R)

Lamp flashing, continuous modulating buzzer sounding, gas concentration display blinking, vibration

Gas alarm indication Reset operation: Self-latching

Fault alarm System abnormality, sensor abnormality, battery voltage drop, calibration failure

Fault alarm indication Lamp flashing, intermittent buzzer sounding, detail display Reset operation: Self-latching

Displays LCD digital, backlight, operation status, clock, battery level, temperature, peak reading, calibration notification

Buzzer volume Approx. 95dB (30cm)

Data logger function Maximum number of items: 3,600 Interval: 5 minutes (adjustable) Communication system: IrDA

ATEX II1G Ex da ia IIC T4 Ga / IM1 Ex da ia I Ma (With combustible gas sensor) II1G Ex ia IIC T4 Ga / IM1 Ex ia I Ma (No combustible gas sensor)Explosion-proof class IECEx Ex da ia IIC T4 Ga / Ex da ia I Ma (With combustible gas sensor) Ex ia IIC T4 Ga / Ex ia I Ma (No combustible gas sensor) Japan Ex Ex ia IIC T4 Ga

Protection level Equivalent to IP66/68 (2 m, 1 h)

Power source Lithium ion rechargeable battery unit Charging time: Approx. 3 hours

Long-life battery mode on: Approx. 40 hours (25°C, fully charged, no alarm, no lighting)Continuous operating time*1

Long-life battery mode off: Approx. 25 hours (25°C, fully charged, no alarm, no lighting)

Temperature range/humidity range*2

-40℃～+60℃(no sudden changes), 0～95%RH (non-condensation)

External dimensions/weight Approx. 58mm (W) × 65mm (H) × 26mm (D) (excluding protrusions) / Approx.100g

Warranty 3 years (optional 2 years extension available)

Detection target gas

1 digit

Gas alarm setpoint(can be set by user)

Detection range(service range)

Detection principle Electrochemical type

1%LEL

1st alarm : 10%LEL2nd alarm : 25%LEL3rd alarm : 50%LELOVER alarm : 100%LEL

0~100%LEL

New ceramic type

Combustible gas(HC or CH4)

0.1vol%

L alarm : 19.5vol%LL alarm : 18.0vol%H alarm : 23.5vol%OVER alarm : 40.0vol%

0~25.0 vol%(~40.0 vol%)

Oxygen(O2)

1ppm

1st alarm : 25ppm2nd alarm : 50ppm3rd alarm : 1200ppmTWA alarm : 25ppmSTEL alarm : 200ppmOVER alarm : 2000ppm

0~500ppm(~2000ppm)

Carbon monoxide(CO)

0.1ppm

1st alarm : 5.0ppm2nd alarm : 30.0ppm3rd alarm : 100.0ppmTWA alarm : 1.0ppmSTEL alarm : 5.0ppmOVER alarm : 200.0ppm

0~100.0ppm(~200.0ppm)

Hydrogen sulfide(H2S)

Protective cover(Part No. 4777 4161 10)

Appearance when attached

Standard accessoriesProtective cover

EU plug(Part No. 2594 0933 60)

Specifications

Detection gas

The newly developed dual-sensor configuration reduces size by approximately 30% compared to previous models.Light weight (about 100g) means it won’t interfere with your work.

The instrument and sensors have 5-year warranty*.*Option.

Small & Light

5-year warranty

Weightsjust

100g!

Portable gas monitorModel

Intrinsically safe explosion-proof construction and flame - proof enclosures

Water and dust resistant IP66/68

Robust design(Withstands 7m drop)

Play the Promotional videofrom here.

Now on the website!

Hand strap (Part No. 0888 0605 90)

AC adapter (Part No. 2594 0898 30)

Alligator clip(Part No. 4777 9203 10)

Calibration adapter (simple type)(Part No. 4777 9307 40)

Type listTYPE Detection gas

TYPE A LEL, O2, H2S, CO

TYPE B LEL, O2 ,H2S

TYPE C LEL, O2, CO

TYPE CH LEL, O2, CO*

TYPE D LEL, O2

TYPE E O2, H2S

TYPE F O2, CO

TYPE FH O2, CO*

TYPE I LEL, CO

TYPE IH LEL, CO*

TYPE K H2S

* CO sensor with reduced H2 interference

PC0E-1001

PC0E-1001-200130 S

Distributed by:Distributed by:

2-7-6 Azusawa, Itabashi-ku, Tokyo 174 -8744, Japan: +81-3-3966-1113: +81-3-3558-9110: intdept@rikenkeiki.co.jp: http://www.rikenkeiki.co.jp/english

PhoneTelefaxE-mail

Web site

※The contents described in this catalog are subject to change without notice according to the performance improvement.